Mechanical hammer



July 14, 1931.

' F. TAUR|AC- 1\41EGHANIGALl HAMMER Filed June 30, 1950 2 Sheets-Sheet 1 E E Y nuenlor Allorney July 14, 1931. F. TAURIAC 1,814,459 x MECHANICAL HAMMER Filled June 30, 1950 2 Sheets-Sheet 2 Li ff e Inventor` 13A/@Mmm y A Homey Patented July 14, 1931 FELIX rename, or JENNINGS, 'LoUIsIANA MECHANICAL HAMMER Application filed June 30,

This invention relates to a manually manipulated mechanical hammer susceptible of diversified usage in various industrial trades but particularly designed for employment in a blacksmith shop or an analogous establishment.

Briefly stated, in carrying the inventive conception into practice, have evolved and produced a simplified structure which is characterized by a supporting frame provided with a plurality of mechanically related elee ments manipulated through the medium of a foot pedal, and serving to operate a hammer carrying yoke, the yokes and hammers being so located as to effectively come into engagement with the work on an anvil or other supporting surface.

My primary aim is to provide a hammer of this classification which is characterized by simplicity, economy and emciency in construction and use.

Other features and advantages and objects of the invention will become more readily apparent from the following 'description and drawings.

n the accompanying drawings, in which like numerals are employed to designate like parts throughout the different views;

Figure 1 is a side elevational view of the complete assembly constituting the novelty of this invention.

Figure 2 is a top plan view thereof.

Figure 3 is a front elevation or a view observing the structure in Figure 1 in a direction from left to right.

Figure 4 is a vertical cross sectional view through the forward portion of the structure.

In the drawings, the numeral 5 designates generally the supporting frame which includes a suitable base 6 and a pair of vertical standards or uprights 7 and 8 respectively. On one side of the base is an inverted V- shaped supporting' member 9 for a bell-crank 10. The forward arm of this bellcrank is connected through the medium of a link 11 with a foot pedal 12. The foot pedal embodies a clevis or coupler strap 13 which is rockably connected with a staple 14 on the base.

On the rear standard 8 are bearings 15 in 1930.' g Serial No. 464,997.

which a crankshaft is mounted for oscillation. The crank a-rm 16 is connected by way of a link 17 tothe adjacent arm of the aforesaid bellcrank 10. The central crank portion 18 carries a link 19 which is operatively1 55 connected with a rocker arm`20.

This rocker arm is rockably mounted intermediate its ends on a front shaft 21 mounted in bearings 22 on the front upright 7. The rocker arm extends beyond the shaft where it is fastened between the complemental sections or portions of a yoke 23. This yoke is swingably mounted on the projecting end portion of the shaft 21 as seen in Figure 2. 0n the apex portion of the yoke is the ham- 65 mer 24 whichk is appropriately located for engagement with the work, (not shown).

The numeral 25 designates a coiled return spring which is fastened to the arm 2O at one end and fastened to the standard 11 at-the 70 opposite end as seen'in Figure 1.

The numeral 26 merely designates braces, any number of which may be provided in the complete structure for distributing the stress and strain on the various parts to render the structure sufficiently rigid for practical purposes.

The frame 5 may be portable or attached to a stationary support, such as the floor, stand or the like. In operation it is obvious that by pressing downwardly on the free end portion of the pedal 12, this will rock the bell crank 10 in a direction to in turn oscillate the crank shaft through the medium of the link 17 and arm 16. This operation actuates the 85 crank 18, the links'19 and the rocker arm 2O in such a way as to elevate the yoke 23 carrying the hammer 24.

When the foot is removed from the pedal, the spring 25, together with the action of gravity, lowers the hammer 24 in a forceful manner to produce the desired impact on the work. The hammer may be thus raised and lowered as desired to produce alternating blows on the work for appropriate pounding purposes.

It is thought that persons skilled in the art to which the invention relates will be able to obtain a clear understanding of the invention after considering the description ill c011- nection with the drawings. Therefore, a more lengthy description is regarded as unnecessary.

Minor changes in shape, size, and rear- 5 rangement of details coming within the field of invention claimed may be resorted to in actual practice if desired.

I claim: l A device of the class described comprisw ing a base, a front upright and a rear upright carried by the base, a front shaft journalled in the front upright, a yoke having the ends of its limbs connected to the ends of said shaft, a hammer carried by the free endfof the 15 yoke, a spring connected with the yoke and with the lower part of the front upright for normally holding the yoke and the hammer in lowered position, a rocker arm pivoted to the shaft and having its front end connected 20 with the free end of the yoke, a crank shaft journalled to the lower part of the rear upright, a link connecting the crank of said shaft to the rear end of the rocker arm, a third upright on the base, a bell crank pivoted A42 thereto, a link connected to the end of one arm of said bell crank, the crank shaft having an arm with which the link is connected, a foot pedal pivotally connected with a front part of the base and a link connecting the pedal to the front end of the bell crank whereby the depression of the pedal will raise the yoke and the hammer to permit the spring and gravity to lower the yoke and hammer when the foot is removed from the pedal. si In testimony whereof I afHX my signature.

- FELIX TAURIAC.

'Sii 

